Improvement in straw-cutters



D. STURGIS.

Straw Cutter.

Patented June 30, 1868.

77 5522 eases.

NPETERS. PHOTO-LITHOGRAPHER. WASHINGTON D C,

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D. STURGI S, OF BYRON, ASSIGNOR TO HIMSELF M. THATCHER, OF

' SHIAWASSEE, MICHIGAN.

Letters Patent No. 79,513, dated June 30, 1868 antedatecl June 27, 1868.

TO ALL WHOM'IT MAY CONCERN:

Be it known that I, D. STURGIS, of Byron, in the county of Shiawassec,and in Ithe State of Michigan, have invented certain new and usefulImprovements in-Straw-Cutters; and do hereby declare that the followingis a full, clear, andexact description thereof, reference being had tothe accompanying drawings, and to the letters of reference markedthereon.

In the annexed drawings, making part of this specification, A representsthe frame of a straw-cutter, which may be made of the usual dimensions,"and supported upon suitable legs. The forward end of this frame isprovided with an inclined bottom board, 13, so that the straw or haywhen out will slide or pass readily channel or way in which the strawlies as it is being fed to the cylinder. w This box is made-s0 that itrests away from it.

Lyin. crosswise of the frame, near its forward end, is a cylinder, whichis provided with a suitable shaft, which shaft has its bearings intheframe. This cylinder is composed of two cast-iron, heads, separatedtwelve inches from each other, and provided between them with asheet-iron band, C. This band forms the periphery of the cylinder,but-is dropped below the peripheries of the heads about two inches. Theheads projecting thus above the: band C, form rims, upon which theknives D are bolted. ,The knives D run diagonally across the cylinder,being secured at their ends to the rims of the heads. Immediatelybeneath the knives the band C is indented or provided with recesses, a,so that the cylinder will easily clear itselfof' the cut straw, whichmight otherwise pack. I

Upon one end of the shaft of the cylinder is a pinion, G, and upon theother end is a pulley, around which passes a band, M.

The pinion G works into a geni' -\vliecl, II, said wheel H being securedupon a short crank-shaft, which has its hearings in the frame A. Y

P'repr esc nts a cross-piece in the frame, which lies close to thecylinder, and which ispro'vided with a metallic cutter-plate, against orclose to which the knives cut the straw. A i

N represents one of the feedrollers, whose shaft lics across the frameA, having hearings in it. Upon one end of thi s shaft is a pulley,around which the belt M passes after leaving the pulley'of thecylinder-shaft. This belt is crossed. I 4

J represents a box, which at the same time forms a cover for thecylinder, nnd sides'and bottom or the upon the frame, is easilyremovahle,'bcing confined to said frame by means of suitable books. I

Theshaft of a feed-roller, K, lies in curved slots in this box, and ispressed downward by means of the springs LL; On one end bf the shaft ofthis roller is a pinion, which gears into the gear-wheel H, which givesit motion. The two feed-rollers both revolve in the same direction. Thelower roller is inadeplain, while the other is corrugated upon itsperiphery. The cylinder is made heavy enough to answer the place ofa-baln-nce-whcel. The machine, by this construction, will cut easilywhen once in motion, and that, too, without any tendency tothe strainingof the cylinder-shaft. Having thus fully described my invention, what Iclaim as new, and desire to secure by Letters Patent, is- Thearrangement of the cylinder, as constructed with the frame A, b'ox J,and-fe'ed-rollers' K and N, con nected together and operati'ng as andfor the purpose set forth. In testimony that I claim the foregoing, Ihave hereunto set my hand, this 14th day of October, 1867.

, D. STURGIS. Vitnesses-t DANIEL Sunnwoon, EZRA N. FAIRCHILD.

